Repeat Regions/Events Multiple Times… – Logic Pro keyboard command of the day (KCotD)

  Repeat Regions/Events Multiple Times…

Make multiple copies (or aliases) of the selected region. Simple way to repeat sections of audio, or MIDI events

Repeat regions in the Logic Pro Tracks area – Apple Support

You can repeat one or more selected regions in the Tracks area. Repeating a region pastes one or more copies (or aliases) of the regions following (to the right of) the regions in the same track.